close #LINQT-1608 busy indicator when components are loading

Linphone/core/account/AccountDeviceList.cpp

@@ -101,6 +101,7 @@ void AccountDeviceList::setDevices(QList<QSharedPointer<AccountDeviceCore>> devi
 	mustBeInMainThread(log().arg(Q_FUNC_INFO));
 	add(devices);
 	lDebug() << log().arg("Add %1 devices").arg(devices.size());
+	emit devicesSet();
 }
 
 void AccountDeviceList::deleteDevice(AccountDeviceGui *deviceGui) {

Linphone/core/account/AccountDeviceList.hpp

@@ -55,6 +55,7 @@ public:
 
 signals:
 	void componentReady();
+	void devicesSet();
 
 private:
 	QSharedPointer<AccountCore> mAccountCore;

Linphone/core/account/AccountDeviceProxy.cpp

@@ -32,6 +32,12 @@ DEFINE_GUI_OBJECT(AccountDeviceProxy)
 
 AccountDeviceProxy::AccountDeviceProxy(QObject *parent) : LimitProxy(parent) {
 	mAccountDeviceList = AccountDeviceList::create();
+	connect(this, &AccountDeviceProxy::sourceModelChanged, this, [this] {
+		auto model = getListModel<AccountDeviceList>();
+		if (model) {
+			connect(model, &AccountDeviceList::devicesSet, this, &AccountDeviceProxy::devicesSet);
+		}
+	});
 	setSourceModels(new SortFilterList(mAccountDeviceList.get(), Qt::DescendingOrder));
 }
 

Linphone/core/account/AccountDeviceProxy.hpp

@@ -48,6 +48,7 @@ protected:
 signals:
 	void lUpdate();
 	void accountChanged();
+	void devicesSet();
 
 private:
 	QString mSearchText;

Linphone/view/Page/Layout/Settings/AccountSettingsGeneralLayout.qml

@@ -229,13 +229,24 @@ AbstractSettingsLayout {
 			}
 			contentItem: ColumnLayout {
 				spacing: 15 * DefaultStyle.dp
+                BusyIndicator {
+                    Layout.preferredWidth: 60 * DefaultStyle.dp
+                    Layout.preferredHeight: 60 * DefaultStyle.dp
+                    Layout.alignment: Qt.AlignHCenter
+                    visible: devices.loading
+                }
+
 				Repeater {
 					id: devices
+                    visible: !loading
+                    property bool loading
+                    Component.onCompleted: loading = true
 					model: AccountDeviceProxy {
 						id: accountDeviceProxy
 						account: model
+                        onDevicesSet: devices.loading = false;
 					}
-					Control.Control{
+                    Control.Control {
 						Layout.fillWidth: true
 						height: 133 * DefaultStyle.dp
 						topPadding: 26 * DefaultStyle.dp